Passenger electric-railway car.



F. H. LINCOLN.

PASSENGER ELBCTBIU RAILWAY CAR.

PPLIGATION FILED APR. 1s. 1909.

945,964. Patented Jan. 11,1910.

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UNITED STATES PATENT (')FFICE FREDERCK H. LINCOLN, 0F PHILADELPHIA,PENNSYLVANIA.

PASSENGER ELECTRIC-RAILWAY CAR.

Specification o1 .Letters Patent.

Application filed April 19, 1909.

atcnted Jain. 11, 1910.

Serial No. 490,896.

Sylvania, have invented certain new and useful Improvements 1n`llusicnger llhuirn' i Railway Cars, of which the following is aspecification,

My invention relates to Safety appui-ninfa ,for electric rnilvay cnrs;andin Such connection it has particular relation to menne for preventingthe storting of :i enr, While any of the doors remain onen or nneioiul,

The principal objects of my invention :are first, to provide a slniplcand efficient means for preventino' the starting ot electric railA waycars, whi e any of the doors thereof remain open or unc osed, to therebyprevent accidents caused by the improper starting of the car, whilepassengers are in tho act of lentering or leaving the same as well aspreventin assengers from jumping from the car wilxe): in motion; second,to provide in connection1 with the4 aforesaid device, means toautomatically signal to the :notor- `rnfinwhen any of the doors of the`ear are opened or closed; and third, to provide in such a car, anemergency-switch, whereby the motorman can, under extraordinarycircumstances /operate't'he car notvvithstend in some of the doors maybe open.

invention is particularly applicable toe ectric railwa cars of the typeknown as pay-within or payas-you-enter cars, these cars as is wellknown, being usually provide with sliding or Swinging doors, which aremaintained closed, while the cer is running, andmy present inventioncontemplates the employment of means to prevent improper starting oroperation of cars of the said types, while any of the doors thereofremain unclosed or opened durin 'the running of the cnr as welles proviing automatic signaling means in connection therewith.

The nature, scope and characteristic features of my present inventionwill he more readily undersood fromthe following-description taken inconnection with the Paccompnnyin.I drawing forming arthereof, showing aiagranun tlc view o the wiring employed 1n one embodiment-of myinvention, 1n an electricrailway car, but with only eo much of theconneclirn-z Aslum'n :is ie necvskuly, for' si, cmnnrchennhIn ol' thv.Suid invention.

Referring to the mowing il, if; one of the lines ot' u mailt circuit otn ont', preferably thnt portion thereof running from the usual l hoodStv-,Titoli .ind "Rif-unit lncnltrrl to the controllore und :noto The'line 3, funn to a. contact 1i, of a circ-uitflirenltcr or ning netcontroller! switch It, the current passing through a. contacbhur 5, ofthe said circuit breaker it., to a. Contact 6, of the sziid circuitbreaker, und thencrl through thc line T, to the ci ll "e ond ignoto lwhere the cur rent dintrihuted ontrouw, in the ueual manner. ln theprf'ecnt tmlliodiniclit of :ny invention, there is cn'iployed an nuxil`inry circuit for controlling; the circuitbreaker or magnet controlledswitch A, this circuit being connected' by the liuc 8, to the trolley orto any other suitable live puit ot the car circuit, this auxiliarycircuit. being controlled. by a switch 9, from which the current passenhy the line 1G to the line l1, and thence to the erm L, oin three-waySwitch B.

The three-'Wav switch il, is controlled und actuated, in unison, 'withthe actuation of a door of the car, the arm l), being connected by a rodb, either to the door or io u mechanism for operating the door in anysuitable nmnner,'n0t shown, so that the switch erin b, will be actuatedat all times, lin unison with the said door. When the door is closed andthe switch B, is in the condition shown in the drnwing` the currentpasses from the switch arm I), through the contact b2, thence throughthe line l2, to the solenoid al, of the circuit-breaker A, energizingthe saine, and causing the solenoid core a, to permit 'the contact-har5, to bridge the terminals 4 and 6, and thus to maintain the maincar-circuit unbroken at this point. Alter passing through the solenoida, the current passes by the line 13, to the common' returnlll,connected with the traction-wheel 15, of 'the car, thence passingto therail 16, constituting the common-return of the elec` tric railwaysystem.Y When a door is in en o en position, the current will passthrough tlije switch aru' b. to the contact b: thence through the line17, the resistance 1`8.` and the trip-cntchcoil 19, which, in .thisV articularembodiment of my invention as i lustrated is energized, to causethe trip catch a3, of circuit breaker A, to release t 1e contact bur 5,of said circuitbreaker A, to thereby ermit the maincii'cuit of the carto be roken at this point. After passing through the trip-catch-coil 19,the current passes by the line 20, to the common return 14, of theauxiliary circuit of the car. When the switch B, is actuated by theopening and closing of the door, the arm b, in assing from the contactb2, to the contact 3 will momentarily pass over a contact b, and permitthe current to tiow through line 21 to a signal bell C, which is locatedin rox` imity to the motormans position, an will indicate to him therespective, o ening and closing 'of the doors, to guide im in .theolperation ofthe car. After passing through t e signal bell C, the'current returns by the line 22, to the common return 14, and thence tothe main circuit of the railway system, as hereinbefore described.

It will be a parent that if the foregoing device be use in railwaysystems, where crossin are refliuent, there will be occa sions w enossib ythe doors might be open and it Wou d be necessary to quickly movethe car, to avoid collisions or other accidents, and this could not bedone with any of the doors open at such times, as it will be readilyunderstood that the main car-circuit will be' broken and beyond thecontrol of the motorman, whenever the doors are open, and the solenoidcoil al, is not energized. To provide for such an emergency, a switch D,lo-

' cated near the motorman is used, the arm (l1,

of which is connected by the line 23, to the main line 10, of theauxiliary circuit. The switch D, is normally maintained open in anysuitable manner, but at the proper time can be manually operated by themoiorman, to cause the current to flow through contact d, and thencethrough the'line 24, which taps into the line I2, so that the current`ma y pass through the solenoid a1, to energize the same, and thus toclose the main car-circuit controlled throu h the switch D. Likewise ifthe circuit breil tei' A, be closed, and conditions should arise whereit is desirable for the motorman to arbitrarily open the same, byactuating switch D, the current may be permitted to How through thecontact d", thence through the line 25, which taps into the line 17, andthence through t'lie resistance 18, and trip-catchcoil 19, to operatethe trip-catch a", and thereby to open the circuit-breaker A.

By the foregoing means is provided a sim- ]ple and efficient apparatusfor preventing` the operation of a car, while any of the doors of thesame remain open, to the end that accidents may be prevented, asaforesaid, as well as `providing automatic means controll ,by theopening and closing of the doors, for `'signaling to a" motorman that lsuch'operation has taken place; and also providing a means of arbitrarycontrol for the motorman, in case of emergency. While the said meanshave only been shown and described in connection with a single door of acar, it will of course be readily understood that thc same areapplicable to a plurality of doors and such as are usually employed instreet railway cars.

Having thus described the nature and ob- Jects ofmy invention, what Iclaim as new and desire to secure by Letters Patent isz- 1. 1n anelectric railway car, means to break the main car circuit when a door isopened, said means, comprising a circuitbreakentan auxiliary circuit forcontrolling the same and a switch actuated in unison with the door forcontrolling said auxiliary circuit.

2. In an electric railway car, means for breaking the main car circuitwhen a door of thc car is opened, in combination with means forarbitrarily closing said circuit.

3. In an electric railway car, means for breaking the main car circuitwhen a door is o cned, said means, comprising a cir cuitreaker, anauxiliary circuit for controlling the same and a switch actuated inunison with the door for controlling said auxiliary circuit and meanscontrolled by said switch for restoring said circuit breaker.

4. In an electric railway car; means for breakingthe main circuit of thecar, when a door is o cned, said means, comprising a circuit-brcalier,an auxiliary circuit for controlling the same and a switch actuated inunison, with the door for Icontrolling said auxiliary circuit,.meanscontrolled by said switch for restoring said circuit-breaker when thedoor is closed and means for arbitrarily restoring said circuit-breaker.

5. In an electric railway car, means for breaking the main car circuit,when a door is opened, said means, comprising a circuit breaker, anauxiliary circuit for controlling the same, and a switchlactuated inunison with the door for controlling said auxiliary circuit'ineanscontrolled by said switch for restorin said circuit-breaker, when thedoor is close and means for automatically Signaling, when thedoor isbeing opened or closed.

6. In an electric railway car, means for controlling the main carcircuit to prevent improper operation of the car when a door' is open,said means, comprising a. circuitbreaker, an auxiliary circuit foropening said circuit-breaker, a second auxiliarycircuitfor restoringsaid circuit-breaker, ,and a switch actuated in unison with the dor forcontrolling said auxiliary circuits.A

7. In an electric railway car, ans for controlling the main oar circuittb prevent improper operation of the car, when@ door is open, saidmeans, comprising u circ'uitbreaker, an auxiliary circuit for openingsaid circuit-breaker, a second auxiliary circuit for' restoring saidcircuit-breaker, a switch actuated in unison with the door forcontrolling said auxiliary circuits, and a manually operated switchv toarbitrarily control said auxiliary circuits.

In witness whereof, I have hereunto set my 4signature in the presence otwo subscribing witnesses.

FREDERICK H. LINCOLN.

Witnesses:

J. WALTER DOUGLAss, THOMAS M. Smm.

